I have interacted with the spirit in the crypt and had her remove her mask, but that's as far as she's gone at level 20.
Yeah that seems to be a bug, ill have a fix out for it later today
Personally, I'd be exited to see if she gets a chance to perform any other types of vore on Sam.
maybe in the future :) im gonna focus on expanding the world while fleshing out some other characters for now though